summaryrefslogtreecommitdiffstats
path: root/Documentation
diff options
context:
space:
mode:
authorOlivier Moysan <olivier.moysan@st.com>2020-10-20 17:57:09 +0200
committerMark Brown <broonie@kernel.org>2020-10-26 18:26:02 +0100
commitea8650730332ee3c707883a2de37756ea9122981 (patch)
treeb90aea25cc34edfcdf78f626ddf1ec125c3d5325 /Documentation
parentdt-bindings: stm32: dfsdm: update audio properties (diff)
downloadlinux-ea8650730332ee3c707883a2de37756ea9122981.tar.xz
linux-ea8650730332ee3c707883a2de37756ea9122981.zip
ASoC: dt-bindings: stm32: dfsdm: remove stm32-adfsdm.txt binding
Device tree audio configuration for STM32 DFSDM is already covered in the following binding: Documentation/devicetree/bindings/iio/adc/st,stm32-dfsdm-adc.yaml Remove stm32-adfsdm.txt obsolete binding. Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20201020155709.2621-3-olivier.moysan@st.com Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/sound/st,stm32-adfsdm.txt63
1 files changed, 0 insertions, 63 deletions
diff --git a/Documentation/devicetree/bindings/sound/st,stm32-adfsdm.txt b/Documentation/devicetree/bindings/sound/st,stm32-adfsdm.txt
deleted file mode 100644
index 864f5b00b031..000000000000
--- a/Documentation/devicetree/bindings/sound/st,stm32-adfsdm.txt
+++ /dev/null
@@ -1,63 +0,0 @@
-STMicroelectronics Audio Digital Filter Sigma Delta modulators(DFSDM)
-
-The DFSDM allows PDM microphones capture through SPI interface. The Audio
-interface is seems as a sub block of the DFSDM device.
-For details on DFSDM bindings refer to ../iio/adc/st,stm32-dfsdm-adc.txt
-
-Required properties:
- - compatible: "st,stm32h7-dfsdm-dai".
-
- - #sound-dai-cells : Must be equal to 0
-
- - io-channels : phandle to iio dfsdm instance node.
-
-Example of a sound card using audio DFSDM node.
-
- sound_card {
- compatible = "audio-graph-card";
-
- dais = <&cpu_port>;
- };
-
- dfsdm: dfsdm@40017000 {
- compatible = "st,stm32h7-dfsdm";
- reg = <0x40017000 0x400>;
- clocks = <&rcc DFSDM1_CK>;
- clock-names = "dfsdm";
- #interrupt-cells = <1>;
- #address-cells = <1>;
- #size-cells = <0>;
-
- dfsdm_adc0: filter@0 {
- compatible = "st,stm32-dfsdm-dmic";
- reg = <0>;
- interrupts = <110>;
- dmas = <&dmamux1 101 0x400 0x00>;
- dma-names = "rx";
- st,adc-channels = <1>;
- st,adc-channel-names = "dmic0";
- st,adc-channel-types = "SPI_R";
- st,adc-channel-clk-src = "CLKOUT";
- st,filter-order = <5>;
-
- dfsdm_dai0: dfsdm-dai {
- compatible = "st,stm32h7-dfsdm-dai";
- #sound-dai-cells = <0>;
- io-channels = <&dfsdm_adc0 0>;
- cpu_port: port {
- dfsdm_endpoint: endpoint {
- remote-endpoint = <&dmic0_endpoint>;
- };
- };
- };
- };
-
- dmic0: dmic@0 {
- compatible = "dmic-codec";
- #sound-dai-cells = <0>;
- port {
- dmic0_endpoint: endpoint {
- remote-endpoint = <&dfsdm_endpoint>;
- };
- };
- };